Retaining ring for a shaft



FIG. 1 is a front view of the retaining ring for a shaft embodying my design, the rear view being a mirror image thereof;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a left side view, the right side view being a mirror image thereof;

FIG. 5 is an isometric view thereof; and,

FIG. 6 is a front view showing the condition of the retaining ring mounted to a shaft.

The broken line showing of pipe is for illustrative purposes and forms no part of the claimed design. 

An ornamental design for a retaining ring for a shaft, as shown and described in the attached drawings. 